Peter Hewitson

Contact

Heinz Wolff 001 Brunel University Uxbridge UB8 3PH United Kingdom

Tel: +44 (0)1895 266917 Email: peter.hewitson@brunel.ac.uk

About Peter

Peter Hewitson is a Bioprocess Engineer in the Brunel Institute for Bioengineering where he is also studying part-time for a PhD. His research focuses on the scale up of continuous liquid-liquid extraction technology allowing large-scale separations of novel chemicals and bio-molecules for use by the pharmaceuticals industry. His PhD studies centre on the comparison of Intermittent Liquid-Liquid Counter-current Extraction to Isocratic and Continuous Counter-current Extraction and the scale-up of these technologies.

He previously worked as a Senior Research Scientist at Kodak Ltd European Research Laboratories. While there he developing novel photographic media, flexible displays and solar cell technology with patent filings across these applications before transferring to Brunel three years ago.

Research Interests

• Counter-current Chromatography
• Liquid-liquid Counter-current Extraction and Scale-up
• Photographic Systems and Media
• Flexible Conductive Circuits and Flexible Solar Cells

Research Area

Bioprocess Engineering

Publications

Journal Papers

(2011) Ignatova, S., Hewitson, P., Mathews, B. and Sutherland, I., Evaluation of dual flow counter-current chromatography and intermittent counter-current extraction, Journal of Chromatography A 1218 (36) : 6102- 6106

(2011) Sutherland, I., Ignatova, S., Hewitson, P., Janaway, L., Wood, P., Edwards, N., Harris, G., Guzlek, H., Keay, D., Freebairn, K., Johns, D., Douillet, N., Thickitt, C., Vilminot, E. and Mathews, B., Scalable technology for the extraction of pharmaceutics (STEP): The transition from academic knowhow to industrial reality, Journal of Chromatography A 1218 (36) : 6114- 6121

(2011) Sutherland, I., Ignatova, S., Hewitson, P., Janaway, L., Wood, P., Edwards, N., Harris, G., Guzlek, H., Keay, D., Freebairn, K., Johns, D., Douillet, N., Thickitt, C., Vilminot, E. and Mathews, B., Scalable technology for the extraction of pharmaceutics (step): The transition from academic knowhow to industrial reality, Journal of Chromatography A 1218 (36) : 6114- 6121

(2011) Sutherland, I., Hewitson, P. and de Folter, J., Toroidal coil chromatography: The effect of scale-up and "g" field on stage efficiency, Journal of Chromatography A 1218 (36) : 6144- 6147 Download publication

(2011) Sutherland, IA., Hewitson, P. and De Folter, J., Toroidal coil chromatography: The effect of scale-up and "g" field on stage efficiency, Journal of Chromatography A 1218 (36) : 6144- 6147 Download publication

(2011) DeAmicis, C., Edwards, NA., Giles, MB., Harris, GH., Hewitson, P., Janaway, L. and Ignatova, S., Comparison of preparative reversed phase liquid chromatography and countercurrent chromatography for the kilogram scale purification of crude spinetoram insecticide, Journal of Chromatography A 1218 (36) : 6122- 6127

(2011) Sutherland, I., Hewitson, P., Siebers, R., van den Heuvel, R., Arbenz, L., Kinkel, J. and Fisher, D., Scale-up of protein purifications using aqueous two-phase systems: Comparing multilayer toroidal coil chromatography with centrifugal partition chromatography, Journal of Chromatography A 1218 (32) : 5527- 5530

(2011) Hewitson, P., Ignatova, S. and Sutherland, I., Intermittent counter-current extraction-Effect of the key operating parameters on selectivity and throughput, Journal of Chromatography A 1218 (36) : 6072- 6078

(2011) Hewitson, P., Ignatova, S. and Sutherland, I., Intermittent counter-current extraction-effect of the key operating parameters on selectivity and throughput, Journal of Chromatography A 1218 (36) : 6072- 6078

(2010) Ignatova, S., Hawes, D., van den Heuvel, R., Hewitson, P. and Sutherland, IA., A new non-synchronous preparative counter-current centrifuge – the next generation of dynamic extraction/chromatography devices with independent mixing and settling control, which offer a step change in efficiency, Journal of Chromatography A 1217 (1) : 34- 39

(2009) Sutherland, IA., Hewitson, P. and Ignatova, S., Scale-up of counter-current chromatography: Demonstration of predictable isocratic and quasi-continuous operating modes from the test tube to pilot/process scale, Journal of Chromatography A 1216 (50) : 8787- 8792

(2009) Hewitson, P., Ignatova, S., Ye, H., Chen, L. and Sutherland, I., Intermittent counter-current extraction as an alternative approach to purification of Chinese herbal medicine, Journal of Chromatography A 1216 (19) : 4187- 4192

(2009) Sutherland, IA., Hewitson, P. and Ignatova, S., New 18-l process-scale counter-current chromatography centrifuge, Journal of Chromatography A 1216 (19) : 4201- 4205

(2008) Sutherland, IA., Audo, G., Bourton, E., Couillard, F., Fisher, D., Garrard, I., Hewitson, P. and Intes, O., Rapid linear scale-up of a protein separation by centrifugal partition chromatography, Journal of Chromatography A 1190 (1-2) : 57- 62